9 / 2025-03-25 09:41:59
Life-Cycle Carbon Footprint Assessment of Dairy Barns: Insights for Advancing the Low-Carbon Transition of Agricultural Buildings
Life cycle assessment,Carbon footprint,Dairy barns,Low-Carbon transition
摘要待审
Hui Liu / China Agricultural University;College of Water Resources & Civil Engineering
Zhengxiang Shi / College of Water Resources & Civil Engineering; China Agricultural University
Hao LI / College of Water Resources and Civil Engineering; China Agricultural University;Key Laboratory of Agricultural Engineering in Structure and Environment
Chaoyuan Wang / China Agricultural University
CONTEXT: Carbon footprint assessment of barns is essential for exploring low-carbon transition pathways and promoting the sustainable, low-carbon development of the dairy industry.

OBJECTIVE: This study quantifies the carbon footprints of two barn types, develops a carbon emission assessment model, and analyzes the carbon reduction potential of barns.

METHODS: Using the bill-of-materials approach in conjunction with Building Information Modeling (BIM) and EnergyPlus, we quantified the life cycle carbon footprint of barns and constructed a carbon emission assessment model based on the ‘building-process-energy’ framework.

RESULTS AND CONCLUSIONS: The life cycle carbon footprint of the open barn and LPCV barn were 151.56 kgCO2e/(cow-year) and 228.81 kgCO2e/(cow-year), respectively. The operational phase accounted for the largest portion of carbon footprints (57.19% and 73.92%, respectively), while the production of building materials contributed 91.10% and 86.98% of the carbon footprint during the physical phase. The use of extruded polystyrene board(XPS) reduced carbon emissions by 45.67% and 35.90% compared to the use of stone wool board(SWB) panels and polyurethane panels(PUR) panels; the use of leaky flooring for manure removal reduced carbon emissions by 76.06% and 73.51% compared to the use of scrapers for manure removal; and the use of clean electricity reduced the carbon emissions of the operational phase of the barn by 32.53%, which contributed to the life cycle carbon footprint of the barn by 21.79%(open barn) and 26.28%(LPCV barn).

SIGNIFICANCE: This study systematically evaluates the carbon footprint and emission reduction potential across the entire life cycle of barn buildings, providing scientific insights and optimization strategies for the low-carbon transition of agricultural buildings.


 
重要日期
  • 会议日期

    10月20日

    2025

    10月23日

    2025

  • 04月15日 2025

    摘要截稿日期

  • 05月01日 2025

    摘要录用通知日期

  • 06月30日 2025

    初稿截稿日期

  • 08月01日 2025

    终稿截稿日期

  • 08月31日 2025

    初稿录用通知日期

  • 10月23日 2025

    注册截止日期

主办单位
International Research Center for Animal Environment and Welfare (IRCAEW)
Chinese Society of Agricultural Engineering (CSAE)
China Agricultural University (CAU)
Rongchang District People’s Government
The National Center of Technology Innovation for Pigs
承办单位
Chongqing Academy of Animal Sciences (CAAS)
Key Lab of Agricultural Engineering in Structure and Environment, Chinese Ministry of Agriculture, Beijing, China
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